DS - Visualization

What is data visualization?

• Graphical representation of information
• A way to manipulate data
• Coding a dataset
• A mathematical model

Which of these is a comparison plot?

• Scatter plot
• Line chart
• Pie chart
• Histogram

What type of chart is best suited for comparing multiple variables over time?

• Pie chart
• Line chart
• Heatmap
• Box plot

Which tool is non-coding for data visualization?

• Matplotlib
• Tableau
• Seaborn
• Bokeh

What is a key advantage of data visualization?

• Gives perfect accuracy
• Easier to share and communicate data
• Always free from bias
• Requires no design skills

Which feature is NOT typically part of a good data visualization?

• Simplicity
• Color usage
• Complexity
• Brevity

Which plot would you use to show the relationship between two numerical variables?

• Pie chart
• Scatter plot
• Bar chart
• Stacked area chart

What does a bar chart encode?

• The category name
• The value
• The percentage
• The range

What is the purpose of data wrangling?

• To create visualizations
• To transform and map raw data
• To analyze data without modification
• To automate data collection

What is a common con of data visualization?

• It can be biased
• It is too simple to understand
• It uses complex tools
• It requires high accuracy